nest 集成 redis

1.准备工作

安装redis

npm install ioredis

pnpm install --save nestjs-redis ioredis pnpm install --save @nestjsplus/redis

这个命令nest g res redis创建redis需要用的

之后再appmoudlue加入

providers: [

AppService,

{

provide: 'REDIS_CLIENT',

async useFactory() {

const client = createClient({

socket: {

host: 'localhost',

port: 6379,

});

await client.connect();

return client;

安装cache相关依赖
pnpm install cache-manager
pnpm install -d @types/cache-manager
pnpm install cache-manager-redis-store --save

2.配置 Redis 连接

// redis.module.ts import { Module } from '@nestjs/common'; import { RedisService } from './redis.service'; import { RedisController } from './redis.controller'; @Module({ providers: [RedisService], // 注册 RedisService 作为提供者 exports: [RedisService], // 导出 RedisService controllers: [RedisController], }) export class RedisModule {}

3.创建 Redis 服务

// redis.service.ts import { Injectable } from '@nestjs/common'; import Redis from 'ioredis'; @Injectable() export class RedisService { private readonly redisClient: Redis; constructor() { this.redisClient = new Redis({ host: 'localhost', // Redis 服务器的主机名 port: 6379, // Redis 服务器的端口 }); } setValue(key: string, value: string){ return this.redisClient.set(key, value); } getValue(key: string) { return this.redisClient.get(key); } }

4.使用 Redis 服务

// redis.controller.ts import { Controller, Get, Param } from '@nestjs/common'; import { RedisService } from './redis.service'; @Controller('redis') export class RedisController { constructor(private readonly redisService: RedisService) {} @Get('set/:key/:value') async setKey(@Param('key') key: string, @Param('value') value: string){ return await this.redisService.setValue(key, value); } @Get('get/:key') async getValue(@Param('key') key: string) { return await this.redisService.getValue(key); } }